Question: When did Gottlob Frege acquire his academic degree in habilitation.
Paraphrase: Gottlob Frege graduated with a degree in habilitation when?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q60028 p:P512 ?s . ?s ps:P512 wd:Q308678 . ?s pq:P585 ?value}